Improvement in ventilating apparatus for railroad-cars



UNILTED STATE-gsi "PATENT Orrron.v

ROBERT o. GRAVES, or BARnasvrLLE, etno.

IMPRoi/EMENT |N vNTiLArlNej APPARATUS Fon RA|'|.RoAD,CARs.

Specification-'forming parto'fvietters Patent No, 63.880, dated April 16,-1' 867.

To all 'whom it may' concer-u.:

'Be it ,known vthat I, 'ROBERT O.,GR'AVES, of Barnesville," in the countyof Belmont and State of Ohio, have invented. a new and' useful Improvement in Ventilators for Railroad- Cars and Buildings, and I do hereby declare that -th'e following is a full, clear, and exact description thereof, which will enable others skilled Vin the art to make and-use the saine, reference being had tothe accompanying drawings forming part of`this specification, in

ivl1ich vFigure l is a .lon gitudinal sectlon ofmy iinp-roved.' Ventilating apparatus lin a railroadw can Eig. 2 is an end view of the Ventilatingpipe. Fig. B'is an enlarged partial sectional view of the apparatus. Fig. 4 isa partialv bottom view ofthe"Ventilating-pipe.

'j ,Similar letters of-rei`erence indicate like parts;

This invention relates to an unprovedventilating apparatus to be applied to railroad- `cars, vessels, vehicles, public halls, churches,4

dwelling-houses, die, and'consists in a metal or other pipe running throughthe car, vessel,

i or building, having funnel -shap'edopenings on the outside -t'or the admission'of fresh'air, and provided also with peculiar arrangeinentsfor directing' the fresh air into a carl-or roomin' itspassage through Vthe pipe, andfor thedischarge of foulair. i

Fig. l'represents a railroad-'car 'provided with myV improved ventilating apparatus, Which'illustrates the principle and method of operation thereof inthat special application, but may be modified to 'adapt it -t'o any place .or desired po'sition.

-' ,A is thebody'of are car, of `wint-n n is in@ roof. Gis a tube of any suitable size and m'aterial, 'which runs lengthwise of the car A on the inside under the4 roof B, through which both ends are projected.- `,Theends ofthe pipe abo-ve the roof are' goose-necked or bent, andl turned 'toward the ends of the car, and are `"provided 4with funnel-shapedJnouths 'D' D,-

which are covered with wire-cloth to shut out sparks and cinders or d ust, \vhile they will ady mit fresh lair freely. y Each end Vof the pipe is provided with dampers'or stop-valves a a, for 4cuttin g oif the air at either en dand regulating the admission and discharge of air,V as desired. At some point in or near the middle of thepipe C lt. 'wed'ge-shaped or double-inclined partition, b, rises from the lower side nearly to the top of the tube 011 the inside, and oneach side of this partition b are a series of crescentshaped openings or cuts, c c, made in the bottoni of the pipe, which are provided with air guides or defiectors d d, placed on the side of each of the openings c nearest-.to the middlel partition, b, and y rising on the inside froln the bottom in an inclinedposition toward 'the end of the pipe, about halfts diameter.A These air guides or defi-eaters d d are thin plates fitted in the-pipe on the sides of the openings c c, assho'wn in Figs. l, 2.V For railroad-cars Iv'also provide supplementary outlets for the t'oulair by connectingwith the pipev C the pipes .E E, which pass up verticallyT through Ithe roof, and are provided with an ordinary Ventilating-cowl, al These'pipes E E are .placed near the valves a a or over the outermost 'ofthe series of lopenings c c on-eachside of the middle partition, b, and their lower ends are provided with air -guides or deectin gplates a', Which'incline downward toward the n the middleof the pipeG v lt will be observed that with this arrangement of my Ventilating Vapparatus applied to `railroad-cars, the'operation will he the same whicheverend may go forward, and that the current of fresh air admitted in the frontend .of the pipemay be regulated perfectly, ac-

The fresh `air will enter the hell-mouthed pipe Cv at the end in front of the car, and* the current or-volu1ne of air passingY into the -pipeY will be 4direetedby the'deectors d cl -down through the openings c cV into the car, '.when, by-natural'laws, the cool fresh ai'r will' deseend, and-the'rareed and foul air will Vascend land be forced upward through the openings c c in the-opposite`- end of the pipepass ing upward through the pipe E on that side,l

or outof the end of the pipe G at the acl:

part of the car, as may he desired. A por'- tion of thc fresh air which enters the front end of' the pipe willlcont-inue its passage and pass over the partition, assisting by its morev nient in druwingmut the rari-lied und foul nir l'rointhc inside of the cur or room in which the Ventilating,r apparatus muy be applied.

Having thus described my invention, what I claim as new, and desire tc secure by Letl- 4ters Patent, is-

lhe construction and mmngelnenb of Ithe supplemental outlets E E'fhuving delector n upon the pipe C, whose ends ure curved up-i wurd and pass'out ofv the top of the car, and whose. under side is'provided with crescent- 'shuped openings c c, having nir-guides (I d, inclined in opposite directions upon en ch side ofthe middle partition, b, as hereiniset forth, for the purpose specified.

ROBERT C. GEYES. lTitnessesz WM. 'l'. Mimi.l ALLEN J ALEX/mmm. 

